Very nice game. Really tight, there is very little I could see improved. It's small but it really is a complete game.
It would be nice if there were some way to restart the level or jump to the home screen since so much of the game is dependent on raw luck. Bad pond placement can doom you. Or maybe some way to smooth out the luck a little bit. Maybe the ability to save a piece for later? Maybe just putting the ponds in nicer locations most the time? But I played far too much anyway. After a lot of runs I finally got some really good luck and wound up with a high score of 52.